You get two emails after you submit a webform:
1. Generic/Automated email:
'We’re experiencing a high volume of requests, so our response may be delayed. We’ll respond to your inquiry as soon as possible.'
2. Another email (used to be a month after webform submission) which will confirm like this:
'We acknowledge receipt of the documents and wish to inform you that they have been added to the file. Please note, for technical reasons, they may not be visible in your
online account. Rest assured that your supporting documents are indeed added and available for officer review.'
It think it should not matter if they asked for ADR or not, because every time I sent a webform (even with no ADR), I got two emails.
Edit: They might also address the documents and enquiry separately as indicated on the email (second):
- If your enquiry was solely to provide documents, please note this is the only response you will receive.
- If your enquiry included additional questions in addition to the documents, they will be addressed separately, as soon as possible.
Also note the 'inquiry' and 'enquiry' for a difference between automatic reply versus reply of someone "possibly with a British English background".